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tdegraphics/kviewshell/plugins/djvu/libdjvu/DjVuMessage.cpp

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//C- -*- C++ -*-
//C- -------------------------------------------------------------------
//C- DjVuLibre-3.5
//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
//C- Copyright (c) 2001 AT&T
//C-
//C- This software is subject to, and may be distributed under, the
//C- GNU General Public License, Version 2. The license should have
//C- accompanied the software or you may obtain a copy of the license
//C- from the Free Software Foundation at http://www.fsf.org .
//C-
//C- This program is distributed in the hope that it will be useful,
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//C- GNU General Public License for more details.
//C-
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
//C- Software authorized us to replace the original DjVu(r) Reference
//C- Library notice by the following text (see doc/lizard2002.djvu):
//C-
//C- ------------------------------------------------------------------
//C- | DjVu (r) Reference Library (v. 3.5)
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
//C- | 6,058,214 and patents pending.
//C- |
//C- | This software is subject to, and may be distributed under, the
//C- | GNU General Public License, Version 2. The license should have
//C- | accompanied the software or you may obtain a copy of the license
//C- | from the Free Software Foundation at http://www.fsf.org .
//C- |
//C- | The computer code originally released by LizardTech under this
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
//C- | ORIGINAL CODE." Subject to any third party intellectual property
//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
//C- | non-exclusive license to make, use, sell, or otherwise dispose of
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
//C- | General Public License. This grant only confers the right to
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
//C- | the extent such infringement is reasonably necessary to enable
//C- | recipient to make, have made, practice, sell, or otherwise dispose
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
//C- | any greater extent that may be necessary to utilize further
//C- | modifications or combinations.
//C- |
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//C- +------------------------------------------------------------------
//
// $Id: DjVuMessage.cpp,v 1.16 2005/04/27 16:34:13 leonb Exp $
// $Name: release_3_5_15 $
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if NEED_GNUG_PRAGMAS
# pragma implementation
#endif
// From: Leon Bottou, 1/31/2002
// All these XML messages are Lizardtech innovations.
#include "DjVuMessage.h"
#include "GOS.h"
#include "XMLTags.h"
#include "ByteStream.h"
#include "GURL.h"
#include "debug.h"
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#ifdef WIN32
# include <tchar.h>
# include <atlbase.h>
# include <windows.h>
# include <winreg.h>
#endif
#ifdef UNIX
# include <unistd.h>
# include <pwd.h>
# include <sys/types.h>
#endif
#include <locale.h>
#ifndef LC_MESSAGES
# define LC_MESSAGES LC_ALL
#endif
#ifdef HAVE_NAMESPACES
namespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
}
#endif
#endif
GUTF8String &
DjVuMessage::programname(void)
{
static GUTF8String xprogramname;
use_language();
return xprogramname;
}
static const char namestring[]="name";
static const char srcstring[]="src";
static const char *failed_to_parse_XML=ERR_MSG("DjVuMessage.failed_to_parse_XML");
static const char bodystring[]="BODY";
static const char languagestring[]="LANGUAGE";
static const char headstring[]="HEAD";
static const char includestring[]="INCLUDE";
static const char messagestring[]="MESSAGE";
static const char localestring[]="locale";
// directory names for searching messages
static const char opensourcedir[]="osi";
#ifdef AUTOCONF
static const char DjVuDataDir[] = DIR_DATADIR "/djvu";
static const char ModuleDjVuDir[] ="share/djvu";
#else /* !AUTOCONF */
static const char ModuleDjVuDir[] ="profiles";
#endif /* !AUTOCONF */
static const char LocalDjVuDir[] =".DjVu"; // relative to ${HOME}
#ifdef LT_DEFAULT_PREFIX
static const char DjVuPrefixDir[] = LT_DEFAULT_PREFIX "/profiles";
#endif
#ifndef NDEBUG
static const char DebugModuleDjVuDir[] ="../TOPDIR/SRCDIR/profiles";
#endif
#ifdef WIN32
static const char RootDjVuDir[] ="C:/Program Files/LizardTech/Profiles";
static const TCHAR registrypath[]= TEXT("Software\\LizardTech\\DjVu\\Profile Path");
#else
static const char RootDjVuDir[] ="/etc/DjVu/"; // global last resort
#endif
static const char DjVuEnv[] = "DJVU_CONFIG_DIR";
// The name of the message file
static const char MessageFile[]="messages.xml";
static const char LanguageFile[]="languages.xml";
#ifdef WIN32
static GURL
RegOpenReadConfig ( HKEY hParentKey )
{
GURL retval;
// To do: This needs to be shared with SetProfile.cpp
LPCTSTR path = registrypath;
HKEY hKey = 0;
// MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,argv[1],strlen(argv[1])+1,wszSrcFile,sizeof(wszSrcFile));
if (RegOpenKeyEx(hParentKey, path, 0,
KEY_READ, &hKey) == ERROR_SUCCESS )
{
TCHAR path[1024];
// Success
TCHAR *szPathValue = path;
LPCTSTR lpszEntry = (LPCTSTR &)TEXT("");
DWORD dwCount = (sizeof(path)/sizeof(TCHAR))-1;
DWORD dwType;
LONG lResult = RegQueryValueEx(hKey, lpszEntry, NULL,
&dwType, (LPBYTE) szPathValue, &dwCount);
RegCloseKey(hKey);
if ((lResult == ERROR_SUCCESS))
{
szPathValue[dwCount] = 0;
USES_CONVERSION;
retval=GURL::Filename::Native(T2CA(path));
}
}
// if (hKey) RegCloseKey(hKey);
return retval;
}
static GURL
GetModulePath( void )
{
const GUTF8String cwd(GOS::cwd());
TCHAR path[1024];
DWORD dwCount = (sizeof(path)/sizeof(TCHAR))-1;
GetModuleFileName(0, path, dwCount);
USES_CONVERSION;
GURL retval=GURL::Filename::Native(T2CA(path)).base();
GOS::cwd(cwd);
return retval;
}
#elif defined(UNIX)
static GList<GURL>
parsePATH(void)
{
GList<GURL> retval;
const char *path=getenv("PATH");
if(path)
{
GNativeString p(path);
int from=0;
for(int to;(to=p.search(':',from))>0;from=to+1)
{
if(to > from)
{
retval.append(GURL::Filename::Native(p.substr(from,to-from)));
}
}
if((from+1)<(int)p.length())
{
retval.append(GURL::Filename::Native(p.substr(from,-1)));
}
}
return retval;
}
static GURL
GetModulePath( void )
{
GURL retval;
GUTF8String &xprogramname=DjVuMessage::programname();
if(xprogramname.length())
{
if(xprogramname[1]=='/'
||!xprogramname.cmp("../",3)
||!xprogramname.cmp("./",2))
{
retval=GURL::Filename::UTF8(xprogramname);
}
if(retval.is_empty() || !retval.is_file())
{
GList<GURL> paths(parsePATH());
GMap<GUTF8String,void *> pathMAP;
for(GPosition pos=paths;pos;++pos)
{
retval=GURL::UTF8(xprogramname,paths[pos]);
const GUTF8String path(retval.get_string());
if(!pathMAP.contains(path))
{
if(retval.is_file())
break;
pathMAP[path]=0;
}
}
}
if (! retval.is_empty() )
retval = retval.follow_symlinks();
if (! retval.is_empty() )
retval = retval.base();
}
return retval;
}
#endif
static void
appendPath(const GURL &url,
GMap<GUTF8String,void *> &map,
GList<GURL> &list)
{
if( !url.is_empty()
&& !map.contains(url.get_string()) && url.is_dir() )
{
map[url.get_string()]=0;
list.append(url);
}
}
GList<GURL>
DjVuMessage::GetProfilePaths(void)
{
static bool first=true;
static GList<GURL> realpaths;
if(first)
{
first=false;
GMap<GUTF8String,void *> pathsmap;
GList<GURL> paths;
GURL path;
const GUTF8String envp(GOS::getenv(DjVuEnv));
if(envp.length())
appendPath(GURL::Filename::UTF8(envp),pathsmap,paths);
#if defined(WIN32) || defined(UNIX)
GURL mpath(GetModulePath());
if(!mpath.is_empty() && mpath.is_dir())
{
#if defined(UNIX) && !defined(AUTOCONF) && !defined(NDEBUG)
appendPath(GURL::UTF8(DebugModuleDjVuDir,mpath),pathsmap,paths);
#endif
appendPath(mpath,pathsmap,paths);
mpath=mpath.base();
appendPath(GURL::UTF8(ModuleDjVuDir,mpath),pathsmap,paths);
mpath=mpath.base();
appendPath(GURL::UTF8(ModuleDjVuDir,mpath),pathsmap,paths);
}
#endif
#if defined(AUTOCONF)
GURL dpath = GURL::Filename::UTF8(DjVuDataDir);
appendPath(dpath,pathsmap,paths);
#endif
#ifdef WIN32
appendPath(RegOpenReadConfig(HKEY_CURRENT_USER),pathsmap,paths);
appendPath(RegOpenReadConfig(HKEY_LOCAL_MACHINE),pathsmap,paths);
#else
GUTF8String home=GOS::getenv("HOME");
# if HAVE_GETPWUID
if (! home.length()) {
struct passwd *pw=0;
if ((pw = getpwuid(getuid())))
home=GNativeString(pw->pw_dir);
}
# endif
if (home.length()) {
GURL hpath = GURL::UTF8(LocalDjVuDir,GURL::Filename::UTF8(home));
appendPath(hpath,pathsmap,paths);
}
#endif
#ifdef LT_DEFAULT_PREFIX
appendPath(GURL::Filename::UTF8(DjVuPrefixDir),pathsmap,paths);
#endif
appendPath(GURL::Filename::UTF8(RootDjVuDir),pathsmap,paths);
pathsmap.empty();
GPosition pos;
GList< GMap<GUTF8String,GP<lt_XMLTags> > > localemaps;
for(pos=paths;pos;++pos)
{
path=GURL::UTF8(LanguageFile,paths[pos]);
if(path.is_file())
{
const GP<lt_XMLTags> xml(lt_XMLTags::create(ByteStream::create(path,"rb")));
const GPList<lt_XMLTags> Body(xml->get_Tags(bodystring));
GPosition pos=Body;
if(!pos || (pos != Body.lastpos()))
{
G_THROW( ERR_MSG("XMLAnno.extra_body") );
}
const GP<lt_XMLTags> GBody(Body[pos]);
if(!GBody)
{
G_THROW( ERR_MSG("XMLAnno.no_body") );
}
GMap<GUTF8String,GP<lt_XMLTags> > localemap;
lt_XMLTags::get_Maps(languagestring,localestring,Body,localemap);
localemaps.append(localemap);
}
}
GList<GURL> localepaths;
GList<GURL> osilocalepaths;
// Need to do it the right way!
GUTF8String defaultlocale = getenv("LANGUAGE");
if (! defaultlocale)
{
const GUTF8String oldlocale(setlocale(LC_MESSAGES,0));
defaultlocale = setlocale(LC_MESSAGES,"");
setlocale(LC_MESSAGES,(const char *)oldlocale);
}
// Unfathomable search.
for(int loop=0; loop<2; loop++)
{
static const char sepchars[]=" _.@";
const char *p=sepchars+sizeof(sepchars)-1;
do
{
int sepcharpos=p[0]?defaultlocale.search(p[0]):defaultlocale.length();
if(sepcharpos > 0)
{
const GUTF8String sublocale(defaultlocale,sepcharpos);
const GUTF8String downcasesublocale("downcase^"+sublocale.downcase());
for(pos=localemaps;pos;++pos)
{
const GMap<GUTF8String,GP<lt_XMLTags> > &localemap=localemaps[pos];
GPosition pos=localemap.contains(sublocale);
if(!pos)
pos=localemap.contains(downcasesublocale);
if(pos)
{
const GMap<GUTF8String,GUTF8String>&args
= localemap[pos]->get_args();
pos = args.contains(srcstring);
if (pos)
{
const GUTF8String src(args[pos]);
for(pos=paths;pos;++pos)
{
path=GURL::UTF8(src,paths[pos]);
if(path.is_dir())
localepaths.append(path);
path=GURL::UTF8(GUTF8String(opensourcedir)+"/"+src,paths[pos]);
if(path.is_dir())
osilocalepaths.append(path);
}
}
// We don't need to check anymore language files.
p=sepchars;
break;
}
}
if(!pos)
{
for(pos=paths;pos;++pos)
{
path=GURL::UTF8(sublocale,paths[pos]);
if(path.is_dir())
{
localepaths.append(path);
}
path=GURL::UTF8(GUTF8String(opensourcedir)+"/"+sublocale,paths[pos]);
if(path.is_dir())
{
osilocalepaths.append(path);
}
}
}
}
} while(p-- != sepchars);
if((GPosition) localepaths)
break;
defaultlocale="C";
}
for(pos=localepaths;pos;++pos)
appendPath(localepaths[pos],pathsmap,realpaths);
for(pos=paths;pos;++pos)
appendPath(paths[pos],pathsmap,realpaths);
for(pos=osilocalepaths;pos;++pos)
appendPath(osilocalepaths[pos],pathsmap,realpaths);
for(pos=paths;pos;++pos)
{
path=GURL::UTF8(opensourcedir,paths[pos]);
appendPath(path,pathsmap,realpaths);
}
}
return realpaths;
}
static GUTF8String
getbodies(
GList<GURL> &paths,
const GUTF8String &MessageFileName,
GPList<lt_XMLTags> &body,
GMap<GUTF8String, void *> & map )
{
GUTF8String errors;
bool isdone=false;
GPosition firstpathpos=paths;
for(GPosition pathpos=firstpathpos;!isdone && pathpos;++pathpos)
{
const GURL::UTF8 url(MessageFileName,paths[pathpos]);
if(url.is_file())
{
map[MessageFileName]=0;
GP<lt_XMLTags> gtags;
{
GP<ByteStream> bs=ByteStream::create(url,"rb");
G_TRY
{
gtags=lt_XMLTags::create(bs);
}
G_CATCH(ex)
{
GUTF8String mesg(failed_to_parse_XML+("\t"+url.get_string()));
if(errors.length())
{
errors+="\n"+mesg;
}else
{
errors=mesg;
}
errors+="\n"+GUTF8String(ex.get_cause());
}
G_ENDCATCH;
}
if(gtags)
{
lt_XMLTags &tags=*gtags;
GPList<lt_XMLTags> Bodies=tags.get_Tags(bodystring);
if(! Bodies.isempty())
{
isdone=true;
for(GPosition pos=Bodies;pos;++pos)
{
body.append(Bodies[pos]);
}
}
GPList<lt_XMLTags> Head=tags.get_Tags(headstring);
if(! Head.isempty())
{
isdone=true;
GMap<GUTF8String, GP<lt_XMLTags> > includes;
lt_XMLTags::get_Maps(includestring,namestring,Head,includes);
for(GPosition pos=includes;pos;++pos)
{
const GUTF8String file=includes.key(pos);
if(! map.contains(file))
{
GList<GURL> xpaths;
xpaths.append(url.base());
const GUTF8String err2(getbodies(xpaths,file,body,map));
if(err2.length())
{
if(errors.length())
{
errors+="\n"+err2;
}else
{
errors=err2;
}
}
}
}
}
}
}
}
return errors;
}
static GUTF8String
parse(GMap<GUTF8String,GP<lt_XMLTags> > &retval)
{
GUTF8String errors;
GPList<lt_XMLTags> body;
{
GList<GURL> paths=DjVuMessage::GetProfilePaths();
GMap<GUTF8String, void *> map;
GUTF8String m(MessageFile);
errors=getbodies(paths,m,body,map);
}
if(! body.isempty())
{
lt_XMLTags::get_Maps(messagestring,namestring,body,retval);
}
return errors;
}
const DjVuMessageLite &
DjVuMessage::create_full(void)
{
GP<DjVuMessageLite> &static_message=getDjVuMessageLite();
if(!static_message)
{
DjVuMessage *mesg=new DjVuMessage;
static_message=mesg;
mesg->init();
}
return DjVuMessageLite::create_lite();
}
void
DjVuMessage::set_programname(const GUTF8String &xprogramname)
{
programname()=xprogramname;
DjVuMessageLite::create=create_full;
}
void
DjVuMessage::use_language(void)
{
DjVuMessageLite::create=create_full;
}
// Constructor
DjVuMessage::DjVuMessage( void ) {}
void
DjVuMessage::init(void)
{
errors=parse(Map);
}
// Destructor
DjVuMessage::~DjVuMessage( )
{
}
// A C function to perform a message lookup. Arguments are a buffer to receiv
// translated message, a buffer size (bytes), and a message_list. The transla
// result is returned in msg_buffer encoded in Native MBS encoding. In case
// of error, msg_b empty (i.e., msg_buffer[0] == '\0').
void
DjVuMessageLookUpNative(
char *msg_buffer, const unsigned int buffer_size, const char *message)
{
const GNativeString converted(DjVuMessage::LookUpNative( message ));
if( converted.length() >= buffer_size )
msg_buffer[0] = '\0';
else
strcpy( msg_buffer, converted );
}
// A C function to perform a message lookup. Arguments are a buffer to receiv
// translated message, a buffer size (bytes), and a message_list. The transla
// result is returned in msg_buffer encoded in UTF8 encoding. In case
// of error, msg_b empty (i.e., msg_buffer[0] == '\0').
void
DjVuMessageLookUpUTF8(
char *msg_buffer, const unsigned int buffer_size, const char *message)
{
const GUTF8String converted(DjVuMessage::LookUpUTF8( message ));
if( converted.length() >= buffer_size )
msg_buffer[0] = '\0';
else
strcpy( msg_buffer, converted );
}
#ifdef HAVE_NAMESPACES
}
# ifndef NOT_USING_DJVU_NAMESPACE
using namespace DJVU;
# endif
#endif
void
DjVuFormatErrorUTF8( const char *fmt, ... )
{
va_list args;
va_start(args, fmt);
const GUTF8String message(fmt,args);
DjVuWriteError( message );
}
void
DjVuFormatErrorNative( const char *fmt, ... )
{
va_list args;
va_start(args, fmt);
const GNativeString message(fmt,args);
DjVuWriteError( message );
}
const char *
djvu_programname(const char *xprogramname)
{
if(xprogramname)
DjVuMessage::programname()=GNativeString(xprogramname);
return DjVuMessage::programname();
}
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